The performance of optical clocks has strongly progressed in recent years, and accuracies and instabilities of 1 part in 1018 are expected in the near future. The operation of optical clocks in space provides new scientific and technological opportunities. In particular, an earth-orbiting satellite containing an ensemble of optical clocks would allow a precision measurement of the gravitational redshift, navigation with improved precision, mapping of the earth's gravitational potential by relativistic geodesy, and comparisons between ground clocks.
Optical Clocks in Space / S. SCHILLER; A. GOERLITZ; A. NEVSKY; J.C. J.KOELEMEIJ; A. WICHT; P. GILL; H.A. KLEIN; H.S. MARGOLIS; G. MILETI; U. STERR; F. RIEHLE; E. PEIK; C. TAMM; W. ERTMER; E. RASEL; V. KLEIN; C. SALOMON; G.M. TINO; P. LEMONDE; R. HOLZWARTH; T.W. HANSCH. - In: NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS. - ISSN 0920-5632. - STAMPA. - 166:(2007), pp. 300-302. [10.1016/j.nuclphysbps.2006.12.032]
Optical Clocks in Space
TINO, GUGLIELMO MARIA;
2007
Abstract
The performance of optical clocks has strongly progressed in recent years, and accuracies and instabilities of 1 part in 1018 are expected in the near future. The operation of optical clocks in space provides new scientific and technological opportunities. In particular, an earth-orbiting satellite containing an ensemble of optical clocks would allow a precision measurement of the gravitational redshift, navigation with improved precision, mapping of the earth's gravitational potential by relativistic geodesy, and comparisons between ground clocks.
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2007 optical clocks.pdf
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